Product Overview:
A42Y spring fully enclosed closed high-pressure safety valve for a variety of light and heavy industry and building pipelines. Safety valves are widely used in: chemical, petrochemical, petroleum, paper, mining, electricity, liquefied petroleum gas, food, pharmaceuticals, water supply and drainage, municipal services, machinery and equipment support, electronics industry, urban construction and other fields. A42Y spring fully enclosed closed high-pressure safety valve for operating temperature ≤ 300 ℃ air, petroleum gas, liquid and other media equipment and piping. A42Y-P-type and A42Y-R-type for operating temperature ≤ 200 ℃ corrosive media equipment and piping, as over-voltage protection device.
| product name | A42Y spring fully enclosed closed high-pressure safety valve |
| Product number | A42Y |
| Nominal diameter | DN20-400 |
| Pressure range | 1.6MPa-10.0MPa |
| Body material | Cast steel, forged steel, stainless steel |
The main parts and materials:
| NO. | Part Name | A42Y-C / KA42Y-C material | A42Y-P / KA42Y-P material | A42Y-R material | DA42Y-P material |
| 1 | Seat | 2Cr13 / 1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | ZG1Cr18Ni9Ti |
| 2 | Body | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | LCB / ZG1Cr18Ni9Ti |
| 3 | Adjustment ring | 2Cr13 / 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 4 | Backlash plate | 2Cr13 / 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 5 | Disc | 2Cr13 / 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 6 | Guide sleeve | 2Cr13 / 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 7 | cap | ZG230-450 | ZG230-450 | ZG230-450 | ZG1Cr18Ni9Ti |
| 8 | spring | 50CrVA | 50CrVA coated fluoroplastic | 50CrVA coated fluoroplastic | 50CrVA |
| 9 | Valve stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 1Cr18Ni9Ti |
| 10 | Adjust the screw | 45 | 2Cr13 | 2Cr13 | 2Cr13 |
| 11 | Bonnet | ZG200-400 | ZG200-400 | ZG200-400 | ZG230-450 |
| 12 | Sealing surface material | Surfacing Co-based cemented carbide | |||
